package com.platform.security;

import com.platform.common.annotation.logger.EnableLogger;
import org.apache.log4j.Logger;
import org.springframework.security.access.SecurityMetadataSource;
import org.springframework.security.access.intercept.AbstractSecurityInterceptor;
import org.springframework.security.access.intercept.InterceptorStatusToken;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.access.intercept.FilterInvocationSecurityMetadataSource;

import javax.servlet.*;
import java.io.IOException;

public class PlatformFilterSecurityInterceptor extends AbstractSecurityInterceptor implements Filter {

    @EnableLogger
    private static Logger logger;

    private FilterInvocationSecurityMetadataSource securityMetadataSource;

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        if (logger.isDebugEnabled()) {
            logger.debug("doFilter(ServletRequest, ServletResponse, FilterChain) - start");
        }
        FilterInvocation fi = new FilterInvocation(request, response, chain);
        invoke(fi);
        if (logger.isDebugEnabled()) {
            logger.debug("doFilter(ServletRequest, ServletResponse, FilterChain) - end");
        }
    }

    public Class<? extends Object> getSecureObjectClass() {
        return FilterInvocation.class;
    }
    public void invoke(FilterInvocation fi) throws IOException, ServletException {
        InterceptorStatusToken token = super.beforeInvocation(fi);
        try {
            fi.getChain().doFilter(fi.getRequest(), fi.getResponse());
        } finally {
            super.afterInvocation(token, null);
        }
    }

    @Override
    public SecurityMetadataSource obtainSecurityMetadataSource() {
        return this.securityMetadataSource;
    }

    public void destroy() {
    }

    public void init(FilterConfig filterconfig) throws ServletException {
    }

    public FilterInvocationSecurityMetadataSource getSecurityMetadataSource() {
        return this.securityMetadataSource;
    }

    public void setSecurityMetadataSource(FilterInvocationSecurityMetadataSource securityMetadataSource) {
        this.securityMetadataSource = securityMetadataSource;
    }
}
